commit 5962fc6d5fff09c8e6fb8cadcb18327a0f4277f7
Author: Patrick McHardy <kaber@xxxxxxxxx>
Date: Wed Feb 18 15:30:34 2009 +0100
netfilter: nf_conntrack: don't try to deliver events for untracked connections
The untracked conntrack actually does usually have events marked for
delivery as its not special-cased in that part of the code. Skip the
actual delivery since it impacts performance noticeably.
Signed-off-by: Patrick McHardy <kaber@xxxxxxxxx>
diff --git a/include/net/netfilter/nf_conntrack_core.h b/include/net/netfilter/nf_conntrack_core.h
index e78afe7..c25068e 100644
--- a/include/net/netfilter/nf_conntrack_core.h
+++ b/include/net/netfilter/nf_conntrack_core.h
@@ -59,7 +59,7 @@ static inline int nf_conntrack_confirm(struct sk_buff *skb)
struct nf_conn *ct = (struct nf_conn *)skb->nfct;
int ret = NF_ACCEPT;
- if (ct) {
+ if (ct && ct != &nf_conntrack_untracked) {
if (!nf_ct_is_confirmed(ct) && !nf_ct_is_dying(ct))
ret = __nf_conntrack_confirm(skb);
nf_ct_deliver_cached_events(ct);
--
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